Spring suspension.



c. ROBINSON & HE PERSON.

SPRING SUSPENSION. v APPLECATIQN FILED DCIK 3i, 1M6.

1 ,217,1 1 I Patented Feb. 20, 1917.

IIIVI'VENTORS' ATTORNEY 45 tending longitudinally of the vehicle 'axle "neutrino: sTA'rEs PATENT OFFICE.

oLAjaK nonmson' AND HERMAN reason, or HILLYABD, wssrrme'ron, Assmnons vr 'DUPLEX SHOGIGABSORBER oo.-, or sroxiuvn, wAsHINGroN, A. CORPORATION.

1 seems susrnnsron.

Specification of Letters Patent.

. Application filed October 31, 1916. Serial 110. 128,779.

To all whom it may concern:

Be it known that we, CILARK ROBINSON andI-Innemn I'nnsou, citizens of the United ful Improvements wlnch the following is a specification.

States of America, residin at Hillyard, in

the county of Spokane and State of. Wash ington, have invented certain new and use in Spring Suspension, of

This invention pertains to a device or. form of spring suspension, sometimesknown as a shock absorber, intended to 'giveeasy riding qualities to a vehicle.

A further objectLis to check the extreme movements of the springs, serving the objects of-meking the vehicle ride easier and of lessening the liability of the springs to break.

Other and further objects and purposes losed and particularly described. and illust ated in the accom panying drawings, in which 4 mounting of one and 12 the body portion of the.

tlie figures. v The ends of the springll are formed into Figure l, is ,a partial rear view of an automobile showing a preferred form of slringsuspension in elevation and part of t e rear axle and automobile frame,-

Fig. 2, is a top plan view. of the front axle of'an automobile together with the spring thereon, said spring being suspended by two separate forms of spring suspension, one eteach end of the spring;

Fig. 3,.is aside elevation; of Fig. 2 showing the movable parts inftwo pos1tions,'one

of them being shown in dotted lines, and

Fig. 4, is an enlergedhroken-away vie'w of one' oft-he, spools and of one of the suspension springs, showing the manner of springs. p D

In a detail description in which like .numorals refer to like partsthrou bout the several views, 10 indicates the rent axle of a vehicle, 11 a leaf or laminated plate sprlng vehicle. In the particular application shown in these figures the1spr1g1-1 13 across-spring exand has its center portion rigidly fastened to the frame 12'by the clamps 13. 'The two ,outer ends of this springare each fastened to onset my devices which are shown {in eyes which are pivoted to the lower ends end of the suspension "away from the spool V of the spring ,11 Ireturns to its normal posl- 10 of swingingsh-ackles or links 14. The upper ends of these shackles or links 14: are. pivoted to blocks 15. The blocks 15 are .pivoted to supports 16 which in turn are wardly from arms 20. pivoted as at .21 to a-olamp' 22. engaging the axle 10. Extend ing downwardly from the blocks 15 to posi tions in front of the links 14' are ledges 23. -When by reasonof the movements of the vehicle and the weight upon the same, the spring 11 is forced downwardly as to the-' position of the dotted lines 11, the springs 17 are thrown downwardly to the position of the dotted lines 17 and the arms 20 are thrown to the position of the dottedlines 20 Inthe return tonormal position of the said parts, the links '14 strike against tl1e-=,-ledges 23 thereby preventing the upward rebound of the spring 11. Referring now to, the spring 17 at the left side of Fig. Fifthe movable ends 18 are formed into loops,18 the loops enga ing spools 2 1 rotatably and horizontally mounted on pivots QKextendingoutwardly 10 These two ways .ofmounting -the springs 17 so as to have movableends are shown. as we do not wish to be limited to any particular way of mounting themovable ends, althoughwe now prefer the mounting as first above described. In the mounting last above described when the spring- 11 is pressed downwardly to the position of the dotted lines 11, the loop: 18" is forced. inwardly toward the: center of the vehicle 24 and upon the returntion as show-nin'Fig. h-the pressure of the end'l'gifi. upon the spool-2i rotating the some;

In Fig. l..we'l-laveshown the manner of pivoting the blocks '15 to the rear axle 27 which is by supports 28 extehding upwardly 105 through the brake drums 2-9, secured to the casing 30 and pivoted to the blocks 15 as ports, a pan-of springs each having one end rigidly secured to one of said blocks and, extending inwardly toward the center of the leaf spring and having the other or dinner ends pivotally secured to arms pivotally connected to the vehicle axle or axle casing and a suspended pivoted. connection of said leaf spring to said block between said pair of springs.

2. A vehicle spring, suspension comprising a leaf spring, supports near the ends of the spring, blocks pivoted to the supports, a pair of s'pringseach having one end rlgidly secured to oneof said blocks and extending inwardly toward the center of the leaf spring and having the other or inner ends secured to a. support that Will-permit of endwise movement of said springs, links pivotally suspended from said blocks to whlch the ends of the leaf spring are pivotally connected and. ledges extending downwardly from the said blocks in front of and in close proximity to said links.

In testimony whereof We have afiixed our signatures 1n presence of two witnesses.

CLARK ROBINSON. v HERMAN PERSON.

Witnesses:

J. E. MoANnnnw, L. L, WESTFALL. 

